👉 Red blood cells are small, oval-shaped, and lack nuclei, allowing them to carry oxygen efficiently throughout the body. White blood cells, larger and more varied in shape, protect against infections by engulfing foreign invaders.
👉 Red blood cells are small, oval-shaped, and lack nuclei, allowing them to carry oxygen efficiently throughout the body. White blood cells, larger and more varied in shape, protect against infections by engulfing foreign invaders.
https://goldloadingpage.com/word-dictionary/organisms blood cells
